Home / 7,675.78-11,515.30-2,481.26

Finding the Fourth Proportional to 7,675.78, 11,515.30 and 2,481.26

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Solution

The fourth proportional to 7,675.78, 11,515.30 and 2,481.26 is: 3,722.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,675.78 : 11,515.30 = 2,481.26 : x
  2. Step 2: Convert to fraction form
    7,675.78/11,515.30 = 2,481.26/x
  3. Step 3: Cross multiply
    7,675.78x = 11,515.30 × 2,481.26
  4. Step 4: Simplify right side
    7,675.78x = 28,572,453.28
  5. Step 5: Solve for x
    x = 28,572,453.28/7,675.78
  6. Step 6: Final answer
    x = 3,722.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.